2 releases
new 0.1.1 | Oct 30, 2024 |
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0.1.0 | Oct 29, 2024 |
#1528 in Development tools
99 downloads per month
5KB
EnvSwapper
env_swapper
is a lightweight Rust library to temporarily set environment variables, automatically restoring the previous state when out of scope.
Installation
Add env_swapper
to your Cargo.toml
:
[dependencies]
env_swapper = "0.1.0"
Usage
use env_swapper::EnvSwapper;
use std::env;
fn main() {
let key = "EXAMPLE_VAR";
{
let _swapper = EnvSwapper::new(&[(key, "temporary_value")]);
println!("Inside scope: {:?}", env::var(key)); // Outputs "temporary_value"
}
println!("Outside scope: {:?}", env::var(key)); // Restored to original
}
Features
Temporarily sets and restores environment variables automatically on scope exit. Ideal for testing, sandboxed configurations, and controlled environment changes.
License
This project is licensed under the MIT License.
Author
Ben Santora bensatlantik@gmail.com